Malfunction determination for gas turbine enclosure
a technology for gas turbine enclosures and malfunctions, which is applied to machines/engines, engine components, mechanical equipment, etc., can solve problems such as leakage of sealed flange connections, difficulty in identifying malfunctions in gas turbine enclosures, and reduced flow into or out of gas turbine enclosures
Inactive Publication Date: 2018-10-11
GENERAL ELECTRIC CO
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Benefits of technology
The patent describes a system and method for detecting malfunctions in a gas turbine enclosure. It involves measuring temperature and flow rate of the cooling gas, and comparing them to pre-calculated models to determine if there is a malfunction. The technical effect of this patent is to enable early detection and preventive maintenance of malfunctions in gas turbine systems, which can prolong their lifespan and reduce downtime for maintenance.
Problems solved by technology
Malfunctions may occur within the gas turbine enclosure that are difficult to identify.
For example, the sealed flange connections may begin to leak over time, or flow into or out of the gas turbine enclosure may decrease over time due to blockages.
The malfunctions can increase temperature within the gas turbine enclosure, reducing the advantages of the enclosure's ventilation system.
Identifying the existence of a malfunction is challenging because a gas turbine system may change output during operation and, hence, the thermal energy required to be removed by its gas turbine enclosure.
Conventional gas turbine enclosures include simple alarm systems that indicate when a particular operational parameter, e.g., temperature or pressure, exceed a threshold, but the systems do not identify malfunctions in the gas turbine enclosures, i.e., the source of the issue, in relation to gas turbine operation.
Method used
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[0013]As an initial matter, in order to clearly describe the current disclosure it will become necessary to select certain terminology when referring to and describing relevant machine components within a gas turbine system or gas turbine enclosure. When doing this, if possible, common industry terminology will be used and employed in a manner consistent with its accepted meaning. Unless otherwise stated, such terminology should be given a broad interpretation consistent with the context of the present application and the scope of the appended claims. Those of ordinary skill in the art will appreciate that often a particular component may be referred to using several different or overlapping terms. What may be described herein as being a single part may include and be referenced in another context as consisting of multiple components. Alternatively, what may be described herein as including multiple components may be referred to elsewhere as a single part.
[0014]As indicated above, t...
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A method, system and program product for determining a malfunction in a gas turbine enclosure are disclosed. The method may include measuring a temperature at a plurality of locations relative to the gas turbine enclosure; determining a flow rate of a cooling gas through the gas turbine enclosure; and determining a malfunction in the gas turbine enclosure exists in response to at least one of the measured temperatures and the determined flow rate contradicting a model of gas turbine system operational parameters versus respective expected temperatures at the plurality of locations and an expected flow rate of the cooling gas through the gas turbine enclosure.
Description
BACKGROUND OF THE INVENTION[0001]The disclosure relates generally to gas turbine systems, and more particularly, to determining malfunctions in a gas turbine enclosure.[0002]Gas turbine systems are typically positioned within a gas turbine enclosure, the latter of which includes a ventilation system to remove heat from the gas turbine system in a controlled manner. The gas turbine enclosure typically includes a number of sections that are coupled by sealed flange connections. Malfunctions may occur within the gas turbine enclosure that are difficult to identify. For example, the sealed flange connections may begin to leak over time, or flow into or out of the gas turbine enclosure may decrease over time due to blockages. The malfunctions can increase temperature within the gas turbine enclosure, reducing the advantages of the enclosure's ventilation system. Identifying the existence of a malfunction is challenging because a gas turbine system may change output during operation and, ...
Claims
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IPC IPC(8): F02C9/48F02C7/12
CPCF02C7/12F02C9/48F02C9/28F05D2260/80F05D2270/09F05D2270/3032F05D2270/309
Inventor ZHANG, HUA
Owner GENERAL ELECTRIC CO